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A mixture of p-anisaldehyde and ethyl nicotinate elicits positive antennal and behavioral responses in Frankliniella occidentalis

文献类型： 外文期刊

作者： Tian, HouJun 1 ; Chen, YiXin 1 ; Chen, Yong 1 ; Chen, XiuQin 1 ; Lin, Shuo 1 ; Zhang, Jie 6 ; Yang, Guang 7 ; Wei, Hui 1 ;

作者机构： 1.Fujian Acad Agr Sci, Inst Plant Protect, Fuzhou 350003, Peoples R China

2.Fujian Key Lab Monitoring & Integrated Management, Fuzhou, Peoples R China

3.Natl Ctr Agr Biosafety Sci, East China Branch, Fuzhou, Peoples R China

4.Fuzhou Sci Observing & Expt Stn Crop Pests Minist, Fuzhou, Peoples R China

5.Fujian Engn Res Ctr Green Pest Management, Fuzhou, Peoples R China

6.Yunnan Acad Agr Sci, Biotechnol & Germplasm Resource Inst, Kunming, Yunnan, Peoples R China

7.Minist Agr, Key Lab Integrated Pest Management Fujian Taiwan, Fuzhou, Peoples R China

8.Key Lab Green Pest Prevent & Control Univ, Fuzhou, Peoples R China

关键词： antennal and behavioral responses; EAG; electroantennography; ethyl nicotinate; greenhouse trapping; lure; mixture; p-anisaldehyde; Thripidae; Thysanoptera; western flower thrips; Y-tube olfactometer

期刊名称：ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA （ 影响因子：2.433； 五年影响因子：2.28 ）

ISSN： 0013-8703

年卷期： 2022 年 170 卷 7 期

页码：

收录情况： SCI

摘要： Western flower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), is a destructive, invasive pest that has spread rapidly throughout China. Traps for the prevention and control of thrips typically use a single attractant, and few studies have evaluated effective compound combinations. In this study, the attractant effects of ethyl nicotinate and p-anisaldehyde on female F. occidentalis were evaluated. Electroantennography recorded the highest depolarization for the mixture of p-anisaldehyde and ethyl nicotinate standards at a 1:1 mass ratio, and this depolarization was significantly higher than that of the other compounds investigated. The Y-tube olfactometer results show that the olfactory responses of female F. occidentalis to ethyl nicotinate, p-anisaldehyde, and their mixtures (at a 1:1 mass ratio) at concentrations of 0.05, 0.1, 0.5, and 1 mu g mu l(-1) were significantly higher than those to liquid paraffin. The strongest response was toward 0.05 g l(-1) ethyl nicotinate or p-anisaldehyde and the 1 g l(-1) mixture of p-anisaldehyde and ethyl nicotinate standards combined at a 1:1 mass ratio, but high concentration caused a weak reaction. Greenhouse experiments revealed that various concentrations of the attractants were successful in trapping thrips. The attractant mixture at a concentration of 1 g l(-1) was the most effective at luring thrips. Compared with traps without any attractants, those with attractants trapped at least double the number of F. occidentalis. Our study is the first to comprehensively evaluate female F. occidentalis responses to p-anisaldehyde and ethyl nicotinate using electrophysiological, Y-tube olfactometer, and greenhouse trapping analyses. The methods used also proved to be valuable for evaluating the potential of attractants to control F. occidentalis.

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